INGAS - Integrated GAS Powertrain 24 months Meeting, 27-28 October, 2010 Project number: 218447 27-28 October 2010 Project number: 218447 27-28 October.

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Presentation transcript:

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Ecocat catalysts tests synthesis - Presentation contents Catalyst test preparation Test protocols Results of equivalence ratio sensitivity Results of light-off tests Conclusions of the catalyst evaluation phase

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Catalyst test preparation Prototype catalysts to be tested Catalysts were aged with RAH (Rapid Aging Hot) protocol by Ecocat Volume = 1.47 L

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Test protocols Ecocat Catalysts tests Variations of equivalence ratio The objective is to determine the best equivalence ratio regarding the conversion trade-off for HC, CO and NOx and the equivalence ratio sensitivity Steady state condition on the 3000 rpm - 7 bar of BMEP with G20 fuel, exhaust flow = 110 kg/h, T inlet catalyst = 500 °C, GHSV = h -1 Light-off tests The catalyst is warmed-up from 100 °C to 500 °C on the same operating point 3000 rpm – 7 bar, with the optimal equivalence ratio determined above. Light-off temperatures at different conversion rates were computed for each species

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Catalyst #23207 (120 g/ft3, Pd:Rh = 23:1 ) Maximum HC conversion = 55% at Max CO conversion = 88% Max NOx conversion = 85% Equivalence ratio sensitivity 1

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Catalyst # g/ft 3, Pd:Rh = 11: Catalyst Catalyst # g/ft 3, Pd:Rh = 19:1 Catalyst # g/ft 3, Pd:Rh = 39:1 Catalyst # g/ft 3, Pd only Equivalence ratio sensitivity

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Equivalence ratio sensitivity summary

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Conversion efficiency for optimal equivalence ratio Equivalence ratio sensitivity summary 12345

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Catalyst #23207 (120 g/ft3, Pd:Rh = 23:1 ) Light-off tests

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Catalyst # g/ft 3, Pd:Rh = 11: Catalyst Catalyst # g/ft 3, Pd:Rh = 19:1 Catalyst # g/ft 3, Pd:Rh = 39:1 Catalyst # g/ft 3, Pd only Light-off tests

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Light-off tests summary HC conversion CO conversion NOx conversion 12345

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Maximum efficiency during light-off tests Light-off tests summary 12345

INGAS - Integrated GAS Powertrain 24 months Meeting, October, 2010 Project number: October 2010 Project number: October 2010 Conclusions of the catalyst evaluation phase Equivalence ratio sensitivity tests In steady state conditions (T inlet catalyst = 500 °C, GHSV = h -1 ), the prototype #23210 (200 g/ft 3 ; Pd:Rh = 39:1) presents the largest equivalence ratio range. Maximum HC conversion efficiency is 80% at (slightly rich mixture), while maximum CO and NOx conversion efficiency are 90%. Light-off tests In light-off tests conditions, the prototypes #23210 (200 g/ft 3 ; Pd:Rh = 39:1) and #23211 (250 g/ft 3 ; Pd only) display the lowest light-off temperatures. Regarding the cost difference, the #23210 reference could be selected for the next phases.